Machine pok



June 11, 1930. w, E PRESCOTT 1,763,720

MACHINE FOR BAKING WAFERS AND THE LIKE Filed June 4, 1925 4 Sheets-Sheet 1 WiHiam Edward Presoofif June 17, 1930. w. E. PRESCOTT MACHINE FOR BAKING WAFERS AND THE LIKE Filed June 4, 1925 4 Sheets-Sheet 2 June 17, 1930. w. E. PRESCOTT ,7

MACHINEE FOR BAKING WAFERS AND THE'LIKE Filed June 4, 1925 4 Sheets-Sheet 3 //VVf/V7'0R I WiHiam Edward PreecoHT June 17, 1930. w. E. PRESCOTT 1,763,720

MACHINE FOR BAKIN? WAFERS AND THE LIKE Filed Jxine 4, 1925 4 Sheets-Sheet 4 //VV/V TOR.

WiHiam Edward Prescofi.

ATTORND. flym Patented June 17, 1930 s me-st m SAQINAW, twe t omm nter a Mlicnmnfnon, migrate WAFERS AND 'i n'n Luge".

Application filea'euneajisaa sena m snsss, and in Great Bnitainifune 211mg; v1. 1

l A This inventionlrelates-to,machines ling wafers and the like, more particularly of that class in whichz the, wafer 'material,- such asbatteriin amore or less liquid condition, is n15 fed onto the surfaceof moulds orplates moulds being passed continuously, for examletin endless fashion throiwh a Ibak nestles a v f better a a wel and i 5 is ht r 7 ed e vi 0t p rt l us a d n. Fi t which are then closed by hinged covers, the

the iitth e jat ee itha iis th s t p iew th a e a med ad pted wlspc i e red 1 1 chamber or otherwise hBELtGCLQftGINYhlGh the h 10 covers areopened'and the baked wafers removed. l; TL v :7 V

The present invention embodiesv improved means for feeding the Wafer materialtothe moulds or plates; such mean's including a pump whichdeliversa measured or definite "quantityof thehatte'r-to a nozzle or nozzles which in tnrn'deposit it on'each moulda's it passes a definite position in the machine. 5 According to this invention the nozzle 01 a nozzles is or are so construct-ed and actuated as to receive a compound movement, that is-tO say, a rectilinear or curvilinear-movement for depositing the batter in what ever direction in relation to themould edges it is to belaid,

2& meta second arcuate or sWingingmovement at generally right anglesto thefirst movement to place the nozzle over the mould-and remove it therefrom, these latter movements taking lace whilst the would cover iszopen- 3o in andclosing again.

he nozzle or nozzles isor are also seconstructedand arranged as todeposi't thin paths or lines of better on to the mould in comparatively close formation and either in a direction par'allelto the edgesthereofl or in a direction at a right or 'othenangle to'said edges or in curved lines in relation thereto.

"The invention also comprises otherrfeat'ures of construction and arrangement and comhlnation's of partswas set torth in appended claims and hereinafter described with reference to the accompanying-drawingsin: which Fig. l is a plan view showing a nozzle and its associated operating mechanism forfdelivering rectilineanlines of batter. to a mould,'Fig; 2 anfront elevation of Fig. 1 with parts removed for clearness ofillustratio'nr-Fig. 3 is an extendedsectional view of the batter pipe taken in a single plane for showing its connections to the nozzle and his; 1s mounted h monks ettle mshine by of 11 hav ng rol er trave ling .en e iid s ii h i s de o t-th fr -me- Frets th 1 oversmf e moulds to pen and lose them a theytravel throu the ma ine; Iii-Figs.

gland re? and forming a continuation of the '1 piple dt, said; pipe et extending angularl y towards the side :of. the machine where tend upwards re and 125 ulde. the

lien-d 0 n tes the mai atter upp y nipehis e i s i lated abeutits 'alglemeans, usua lyrat and p n nr m diamam, fr m a mov ng pe t f the machine within the-l mits n tedby. thebrpken ne t EXC6SS of etter s deliverdth lgh the type of. machine. m9

tinned, to now turnto the features oft-he present inventiQI}, the noz le having. a series of spaced ou let (Z for producing hedepos toflines .Qihatte onthe inonldmiscarried at the f ee-end o a ipe d? the'other end of which is igidly mounted in one sideiofa casting (Z which is adaptedto slidein a nectilinenr patho it be) 6 extending longitudinally of th machin 9 parallel to, the lateral edges of the mould- The said casting is adaptedto have some turning. movement in relationlto apipe e (EiigfiBffitted to said casting by means of a it 1 forms another: casting e? 1 containing *a gland e f overtvhich fits the tenlargedend of a pipe f branching. from the main batter pipe 0 and provided with a cock f9: working over a graduated plate f toscontrol the supplyof hatter. T a V t The casting d? andguidebare are mounted on a vertical sleeve 9, mounted in a bracket t 9 extending from the frame a of the machine, and adapted to oscillate about its axis 9*, being for this purpose mounted on a bolt 9 depending from said bracket and held therein by a nut 9 The casting d also carries on its upper surface an anti-friction roller d which bears against a cam-plate it connected at one end to a bracket h and at the other end to the bracket 9 by a resilient adjustable connectioncomprising a bolt h and spring hi.

The cam-plate is provided with a straight path it followed by a curved path If struck from a centre coinciding with the axis of oscillationgt of the cast-ing d and guide bar 6.

With the parts as aboveconstructed and arranged the operation will be as follows starting from the position shown in Fig. 1.

On the batter supply pipe 0 being oscillated to the left towards position 00, the casting (i pipe d and nozzle al will be removed forward over the mould I), being guided by the bar 6 and will reach the broken line position shown at y. The batter pipe 0 is then reversed to the said axis g during which time the roller cl on casting (P will follow the curved cam path 7L5. When the batter pipe 0 has been swung to the position x the nozzle will have reached the position shown in broken lines at '1 allowing the cover of the mould to close down thereon for the baking operation. The movements described are permitted by the gland joints previously described in the batter pipes without affecting the passage through same or permitting leakage.

To now refer to the modification shown in Figs. 4 and 5, the same operating mechanism from the main batter pipe 0 may be employed to produce the rectilinear movement of the casting d and the arcuate movements of same in conjunction with the guide bar a about the axis g In this modification however the depositing movement of the nozzle is not a rectilinear one but comprises movements in curved paths indicated by lines .2 in Fig. 4 extending from near an edge or corner at one end or side of the mold b inwards towards the centre and then outwards again to a similar position adjacent the edge or corner at the other end or side, such movements taking place in relation to both sides of the mould and therefore requiring separate nozzles d to deposit the batter in thin lines following the paths indicated.

The deposit of the batter in the fashion stated has the advantage of causing it to spread more equally over the entire mould when the cover closes down thereon; it having been found in practice that with the straight line deposit as in the embodiment first described, the batter had a tendency to ooze from the edges of the mould more freely at the centre of the length orwidth as the case may be than at other parts. With the lines of deposit curving away from such central part, as in the present modification, this tendency is obviated and the batter is caused to flow evenly right into the corners of the mould,

The nozzles (1 are mounted at the end of a bat-ter delivery pipe j fitted into the casting d which receives both the rectilinear movement and arcuate movement as before mentioned. At its free end the pipe carries two spigots 7' about the axis of each of which may turn another pipe 7' carrying at its outer end a nozzle al in the form of a T head. Thus there are two such nozzles in alignment adapted to carry the batter over the mould or plate Z) and the required similar curvilinear movements are imparted to each by means of a relatively stationary cam-member which may be in the form of a plate k having two slots formed therein of converse curvature to the lines of batter to be deposited, said slots being engaged by rollers or other anti-friction means Z extending from extensions 1' of the nozzle-supporting pipes j so that as the aforesaid casting (Z is given its rectilinear movement on the guide bar 6 the nozzles will receive the required curvilinear movement, this being permitted by the pipes 1' being capable of turning about the axes of the spigots j. The cam plate 70 is shown as mounted on an arm k carried by an extension 9 of the sleeve 9 so that it may oscillate about the axis 9* as previously explained.

It will be obvious that in both forms shown and described the design of the nozzle operatin and uidin means is such as to r0 b D D erly time the operations of the nozzle in relation to the speed of the moulds and the open and closed periods of their covers.

Any other appropriate nozzle operating and batter feeding means may however be employed so long as the depositing-in thin paths or lines is effected and the compound movements described are obtained, these movements being in contra-distinction to merely parallel inward and outward or simple arcuate movements of the nozzle as in known prior constructions.

The invention is not limited to the exact construction, arrangement and combination of parts hereinbefore described since the same may be varied within limits prescribed by the following claims without departing from the spirit of the invention.

What I claim as my invention and desire to secure by Letters Patent of the United States is i 1. A feed nozzle for liquid wafer material having means for producing two separate movements in relation to an associated mould viz, a depositing movement longitudinally of the mould and an areuate movement to and away from the mould and means for imparting a curvilinear movement to the nozzle during longitudinal movement.

2. A nozzle for liquid wafer material having means for producing two separate movements in relation to an associated mould, viz, a substantially rectilinear sliding movement longitudinally of the mould for depositing material thereon and a non-depositing arouate movement to and away from said mould and a jointed pipe carrying said nozzle and serving as a supply of wafer material thereto,

said pipe taking part in the longitudinal and arcuate movements of the nozzles. I

3. A nozzle'for wafer and like baking machines carried by a jointed pipe serving for v supply of wafer material to said nozzle, a slidable member carrying said pipe, a guide on which sliding member moves, and means for sliding said member on the guide whereby the nozzle is given a movement-longitudinally of an associated mould,fand means for oscillating said sliding member and guide about a common axis whereby the nozzle is given an arcuate movement to and away from the mould. Y

4. A nozzle for wafer and like baking machines carried by a hollow jointed element serving as a supply for wafer material to the nozzle means for imparting to said element both a rectilinear movement longitudinally of an associated mould and an arcuate movement to and away from said mould and means for converting the rectilinear movement of said jointed element into a curvilinear movement of the nozzle.

5. A nozzle for wafer and like baking machines having means for producing two separate movements of said nozzle in relation to an associated mould, viz, sliding means for effecting a curvilinear depositing movement longitudinally of the mould and of an amplitude substantially corresponding to the length thereof for depositing the material on the mould in curved paths, and pivotal V 7 means for efliecting an arcuate non-depositpath of the mould.

-In Witness whereof I have signed this specification.

WILLIAM EDWARD PRESCOTT.

111g movement of the nozzle into and out of the 

